{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["entity origin", "product producer", "else", "component whole", "instrument agency"], "input": "these cells have been injected into the vitreous cavity ."}
{"entity origin": [], "product producer": [], "else": [], "component whole": [], "instrument agency": []}